THE EPIDEMIOLOGY AND OUTCOMES OF IN- HOSPITAL CARDIAC ARREST AT OUR HOSPITAL

Background: In-hospital cardiac arrest (IHCA) represents a critical medical emergency with substantial mortality rates worldwide. While developed nations report survival rates of 25-30%, data from developing countries indicate significantly poorer outcomes (4.2-6.9%). Understanding the factors influencing IHCAoutcomes in resource-limited settings is crucial for improving patient survival. Objective:This study aimed to evaluate the epidemiology, management outcomes, and prognostic factors of IHCAat a tertiary care center in India, with particular focus on survival rates and associated clinical variables. Methods: We conducted a 3-month retrospective observational study (January-March 2023) at Mahatma Gandhi Medical College, Jaipur, analyzing 64 IHCAcases. Data collection included patient demographics, arrest characteristics (rhythm type, witnessed status), timing variables (weekday/weekend, work/off-hours), and clinical outcomes (ROSC, survival to discharge). Statistical analysis was performed to identify significant associations. Results:Among 64 patients (mean age 68 years), 67.18% achieved ROSC and 34.37% survived to discharge. Shockable rhythms (18.75% of cases) showed better survival (58.33%) compared to non-shockable rhythms (28.85%). Cardiac (29%) and respiratory (15%) etiologies were most common. Arrests occurred more frequently during weekends (59.37%) and off-hours (65.62%), with 46% being unwitnessed. Conclusion:This study confirms lower IHCAsurvival rates in our setting compared to developed nations, with outcomes significantly influenced by initial rhythm, witnessed status, and event timing. The findings emphasize the need for improved monitoring systems, staff training programs, and optimized rapid response protocols in resource-limited hospitals to enhance IHCAoutcomes.